How to Get a Sweeping Side Bun a la Natalie Portman, Ashley Greene and Tina Fey

This 30-minute 'do is a modern alternative to the bun we sport pretty much every day, and perfect for any fancy occasion (Tip: it's a great way to show off sexy shoulders!). Tyler Laswell, a New York-based TRESemme celebrity stylist who has worked with Kim Cattrall, Heidi Klum and Gabrielle Union, tells us how to get the look.

This hairstyle works on medium-to-long length hair, preferably straight or slightly wavy, as long as hair is not too heavy or coarse. You'll need about thirty minutes to recreate the look and the recommended products are:

NEW YORK, NY - MAY 02: Actress Ashley Greene attends the "Alexander McQueen: Savage Beauty" Costume Institute Gala at The Metropolitan Museum of Art on May 2, 2011 in New York City. (Photo by Stephen Lovekin/Getty Images)

To create this look:

Apply an anti-frizz creme to towel-dried hair. Part hair to one side and blow dry smooth, curling under at the ends.

Pull hair all the way over to the side, and tie it into a low ponytail securing with an elastic hair band.

Wrap the pony and loop it as if you're going to knot it, forming a bun-like shape. Secure with bobby pins, crisscrossing them as you pin. Spray hairspray all over to hold the style in place.